letsrun userscript wip

LetsRunUserScript.js

// ==UserScript==
// @name         Let's Run
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Make Let's Run more usable
// @author       Caleb Gentry
// @match        http://www.letsrun.com/forum/*
// @grant        GM_addStyle
// ==/UserScript==

(function() {
    'use strict';
//change these to use as settings
var blacklist = [""]; // add names to prevent certain user's posts from showing up
var maxLength = 700; // The length in pixels a post must be in order to collapse it. I hate scrolling through spam/long posts while reading, so this collapses them.
// makes nested quotes a whole lot more compact and easier to read
GM_addStyle('blockquote{border-right:0 !important; border-bottom:0 !important; border-top:0 !important; margin:20px !important; padding:2px !important} .notice{color: red;}');

//The idea was to collapse long posts. It needs some work. commenting it out for now.

for(let x of document.getElementsByClassName("post_text")){
  if(x.clientHeight > maxLength){
   x.style.overflow = "hidden";
   x.style.height = "300px";
   let a = "<i class = \"notice\"> Note: this post is collapsed. Click to expand.</i>";
   let b = "<i class = \"notice\"> Note: this post is expanded. Click to collapse.</i>";
   x.innerHTML = a + x.innerHTML;
   x.addEventListener("click", function(){
	   for(let u of this.getElementsByClassName("notice")){u.parentNode.removeChild(u);}
	   this.style.height = this.style.height == "auto"?"300px":"auto";
	   this.innerHTML = this.style.height == "auto"?b + this.innerHTML:a + this.innerHTML;
	   });
  }
}
//to block posters using a blacklist
for(let x of document.getElementsByClassName("author")){
	if(x.getElementsByTagName("strong").length > 0){
		if(blacklist.includes(x.getElementsByTagName("strong")[0].innerHTML)){
			let parent = x.parentNode;
			parent.parentNode.removeChild(parent);
		}
	}
	else{
		if(blacklist.includes(x.innerHTML)){
			let parent = x.parentNode;
			parent.parentNode.removeChild(parent);
		}
	}
}


})();